A request for assistance and ideas

Hi all, now that the army is painted and the carry cases organised, I have 2more tasks.
1 display board to begin shortly
2 custom objective markers.

I have 2 mounds with flags and one Kabalite holding a flag for objective markers, but am stuck for ideas for the other three.
Wondering what other people have done, or if any of you have any ideas on themed objectives?
Thanks in advance!

Some sort of slaves perhaps? Ancient artifact? Webway portal? Remains of an important HQ for ressurection? Soul casket? Trophy?

More flags?
I've had a good rummage through several Fantasy players bits boxes and come away with several different looking flags. Each is number for use in Maelstrom missions, with a spare 2 and 3 for Scouring (numbering part of the flag design).

Flags, corpses, skulls, slaves... All of those work. If you want something more creative than simply numbered flags what you can do is simply use several items per marker; for example, objective 4 has 4 slaves on it, objective two has two trophy racks, etc. Bits you can use are the classic slave girls from GW, the wounded space marine models, wounded IG models, or convert your own corpses from whatever you have. One idea I have been toying with is using the cage from the giant kit and put a tau firewarrior inside.

Eldar bits, wraithbone chunks, wraith-units chunks or corpses, spirit stones, renegade psykers, rare venomous fauna or flora, escaped prisoner... or one banana on a torture rack... as objective one... I am sure it would raise a few questions and eyebrows. You can always answer with wink, ominous silence, diabolical laughter or "because I wish it and my wish is law..." :-)

Haemunculy torturing imperial officer.

Or some torture devices with captives. DE use objectives as bait, well, you get the idea.